CompTIA SecurityX (CAS-005) — Question 208

Which of the following most likely explains the reason a security engineer replaced ECC with a lattice-based cryptographic technique?

Answer options

• A. It is computationally efficient and provides perfect forward secrecy.
• B. It is more resilient to brute-force attacks than ECC.
• C. It supports ephemeral key exchange and digital signatures.
• D. It is currently considered a robust PQC technique.
• E. It enables processing on data while remaining in an encrypted state.

Correct answer: D

Explanation

The correct answer, D, highlights that lattice-based cryptographic techniques are recognized as strong post-quantum cryptography (PQC) methods. Options A, B, and C describe benefits that may not specifically pertain to lattice-based systems, while E refers to a feature not uniquely associated with lattice-based cryptography.